If else embedding inside html

Question

What is the correct way of embedding if else  and elseif conditions inside html

User · Answer

lt  php if  date  H    lt   12   amp  amp  date  H   gt  6       gt     src   lt  php bloginfo  template url      gt  images img morning gif     lt  php   elseif  date  H    gt   12   amp  amp  date  H   lt  17       gt   src   lt  php bloginfo  template url      gt  images img noon gif      lt  php   elseif  date  H    gt   17   amp  amp  date  H   lt  21       gt     src   lt  php bloginfo  template url      gt  images img evening gif      lt  php   elseif  date  H    gt   21   amp  amp  date  H   lt  24       gt    src   lt  php bloginfo  template url      gt  images img night gif      lt  php  else     gt    src   lt  php bloginfo  template url      gt  images img mid night gif      lt  php     gt

User · Answer

lt  php if   foo      gt       lt div class  mydiv  gt Condition is true lt  div gt   lt  php   else     gt       lt div class  myotherdiv  gt Condition is false lt  div gt   lt  php     gt

User · Answer

In  Patrick McMahon s response  the second comment here    first condition is false and  second condition is true   is not entirely accurate   lt  php if  first condition     gt       first condition is true      lt div class  quot first-condition-true quot  gt First Condition is true lt  div gt   lt  php elseif  second condition     gt       first condition is false and  second condition is true      lt div class  quot second-condition-true quot  gt Second Condition is true lt  div gt   lt  php else    gt       first condition and  second condition are false      lt div class  quot first-and-second-condition-false quot  gt Conditions are false lt  div gt   lt  php endif    gt   Elseif fires whether  first condition is true or false  as do additional elseif statements  if there are multiple  I am no PHP expert  so I don t know whether that s the correct way to say IF this OR that ELSE that or if there is another better way to code it in PHP  but this would be an important distinction to those looking for OR conditions versus ELSE conditions  Source is w3schools com and my own experience

User · Answer

You will find multiple different methods that people use and they each have there own place     lt  php if  first condition     gt       first condition is true    lt  php elseif   second condition     gt       first condition is false and  second condition is true    lt  php else    gt       first condition and  second condition are false    lt  php endif    gt    If in your php ini attribute short open tag   true  this is normally found on line 141 of the default php ini file  you can replace your php open tag from  lt  php to  lt    This is not advised as most live server environments have this turned off  including many CMS s like Drupal  WordPress and Joomla   I have already tested short hand open tags in Drupal and confirmed that it will break your site  so stick with  lt  php  short open tag is not on by default in all server configurations and must not be assumed as such when developing for unknown server configurations  Many hosting companies have short open tag turned off   A quick search of short open tag in stackExchange shows 830 results  https   stackoverflow com search q short open tag That s a lot of people having problems with something they should just not play with    with some server environments and applications  short hand php open tags will still crash your code even with short open tag set to true   short open tag will be removed in PHP6 so don t use short hand tags   all future PHP versions will be dropping short open tag    http   www askapache com php shorthand-short open tag html https   softwareengineering stackexchange com questions 151661 is-it-bad-practice-to-use-tag-in-php       It s been recommended for several years that you not use the short   tag  short cut  and instead to use the full  tag   combination  With the wide spread use of XML and use of these tags by   other languages  the server can become easily confused and end up   parsing the wrong code in the wrong context  But because this short   cut has been a feature for such a long time  it s currently still   supported for backwards compatibility  but we recommend you don t use   them        Jelmer Sep 25  12 at 9 00    php   quot short open tag   On quot  not working   and     Normally you write PHP like so    However if   allow short tags directive is enabled you re able to use    Also sort tags provides extra syntax   which   is equal to        Short tags might seem cool but they re not  They causes only more   problems  Oh    and IIRC they ll be removed from PHP6    Crozin answered Aug 24  10 at 22 12   php short open tag problem   and     To answer the why part  I d quote Zend PHP 5 certification guide     Short tags were  for a time  the standard in the PHP world  however    they do have the major drawback of conflicting with XML headers and    therefore  have somewhat fallen by the wayside        Fluffy Apr 13  11   at 14 40   Are PHP short tags acceptable to use    You may also see people use the following example    lt  php if  first condition     gt       first condition is true    lt  php  else if   second condition     gt       first condition is false and  second condition is true    lt  php  else    gt       first condition and  second condition are false    lt  php     gt    This will work but it is highly frowned upon as it s not considered as legible and is not what you would use this format for  If you had a PHP file where you had a block of PHP code that didn t have embedded tags inside  then you would use the bracket format    The following example shows when to use the bracket method   lt  php if  first condition         first condition is true    else if   second condition         first condition is false and  second condition is true    else        first condition and  second condition are false       gt    If you re doing this code for yourself you can do what you like  but if your working with a team at a job it is advised to use the correct format for the correct circumstance  If you use brackets in embedded html php scripts that is a good way to get fired  as no one will want to clean up your code after you  IT bosses will care about code legibility and college professors grade on legibility   UPDATE  based on comments from duskwuff its still unclear if shorthand is discouraged  by the php standards  or not  I ll update this answer as I get more information  But based on many documents found on the web about shorthand being bad for portability  I would still personally not use it as it gives no advantage and you must rely on a setting being on that is not on for every web host

User · Answer

I recommend the following syntax for readability    lt   if   condition     gt     lt p gt Content lt  p gt   lt   elseif   other condition     gt     lt p gt Other Content lt  p gt   lt   else    gt     lt p gt Default Content lt  p gt   lt   endif    gt    Note  omitting php on the open tags does require that short open tags is enabled in your configuration  which is the default  The relevant curly-brace-free conditional syntax is always enabled and can be used regardless of this directive

[php] If else embedding inside html

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